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/* $OpenBSD: mknod.c,v 1.16 2007/12/30 13:52:40 sobrado Exp $ */
/* $NetBSD: mknod.c,v 1.8 1995/08/11 00:08:18 jtc Exp $ */
/*
* Copyright (c) 1989, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Kevin Fall.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1989, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
#if 0
static char sccsid[] = "@(#)mknod.c 8.1 (Berkeley) 6/5/93";
#else
static char rcsid[] = "$OpenBSD: mknod.c,v 1.16 2007/12/30 13:52:40 sobrado Exp $";
#endif
#endif /* not lint */
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <locale.h>
#include <err.h>
extern char *__progname;
int domknod(char **, mode_t);
int domkfifo(char **, mode_t);
void usage(int);
int
main(int argc, char *argv[])
{
int ch, ismkfifo = 0;
void *set = NULL;
mode_t mode = 0;
setlocale (LC_ALL, "");
if (strcmp(__progname, "mkfifo") == 0)
ismkfifo = 1;
while ((ch = getopt(argc, argv, "m:")) != -1)
switch(ch) {
case 'm':
if (!(set = setmode(optarg))) {
errx(1, "invalid file mode.");
/* NOTREACHED */
}
/*
* In symbolic mode strings, the + and - operators are
* interpreted relative to an assumed initial mode of
* a=rw.
*/
mode = getmode(set, DEFFILEMODE);
free(set);
break;
case '?':
default:
usage(ismkfifo);
}
argc -= optind;
argv += optind;
if (argv[0] == NULL)
usage(ismkfifo);
if (!ismkfifo) {
if (argc == 2 && argv[1][0] == 'p') {
ismkfifo = 2;
argc--;
argv[1] = NULL;
} else if (argc != 4) {
usage(ismkfifo);
/* NOTREACHED */
}
}
/*
* If the user specified a mode via `-m', don't allow the umask
* to modified it. If no `-m' flag was specified, the default
* mode is the value of the bitwise inclusive or of S_IRUSR,
* S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH as modified by
* the umask.
*/
if (set)
(void)umask(0);
else
mode = DEFFILEMODE;
if (ismkfifo)
exit(domkfifo(argv, mode));
else
exit(domknod(argv, mode));
}
int
domknod(char **argv, mode_t mode)
{
dev_t dev;
char *endp;
u_int major, minor;
if (argv[1][0] == 'c')
mode |= S_IFCHR;
else if (argv[1][0] == 'b')
mode |= S_IFBLK;
else {
errx(1, "node must be type 'b' or 'c'.");
/* NOTREACHED */
}
major = (long)strtoul(argv[2], &endp, 0);
if (endp == argv[2] || *endp != '\0') {
errx(1, "non-numeric major number.");
/* NOTREACHED */
}
minor = (long)strtoul(argv[3], &endp, 0);
if (endp == argv[3] || *endp != '\0') {
errx(1, "non-numeric minor number.");
/* NOTREACHED */
}
dev = makedev(major, minor);
if (major(dev) != major || minor(dev) != minor) {
errx(1, "major or minor number too large");
/* NOTREACHED */
}
if (mknod(argv[0], mode, dev) < 0) {
err(1, "%s", argv[0]);
/* NOTREACHED */
}
return(0);
}
int
domkfifo(char **argv, mode_t mode)
{
int rv;
for (rv = 0; *argv; ++argv) {
if (mkfifo(*argv, mode) < 0) {
warn("%s", *argv);
rv = 1;
}
}
return(rv);
}
void
usage(int ismkfifo)
{
if (ismkfifo == 1)
(void)fprintf(stderr, "usage: %s [-m mode] fifo_name ...\n",
__progname);
else {
(void)fprintf(stderr,
"usage: %s [-m mode] name [b | c] major minor\n",
__progname);
(void)fprintf(stderr, " %s [-m mode] name p\n",
__progname);
}
exit(1);
}
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